GRYLLIDiE. 91 



the bind border of each segment. Cerci a little longer than the body. 

 Oviduct nearly as long as the body; tip pieeous. Legs with black bands, 

 which in the femora are interrupted beneath. Length of the body 

 7 lines. 



a. N. Australia. Presented by J. R. Elsey, Esq. 



kk. Eyes very prominent. 

 /. Legs stout. 



Genus 33. ORBEGA. 



Fcem. Corpus gracile, nitens, fere lineare. Oculi valde prominuli, 

 subpioducti, sat magni. Palporum articulus 3us oblique truncatus, 2o 

 aequilongus. Prothorax subtransversus, antice paullo angustior; latera 

 antice latiora. Onductus abdomine non brevior. Cerci longiores. Pedes 

 validi, longiusculi ; tibiae poslicx utrinque serratae et quadrispinosae. 



Female. Body slender, smooth, shining, nearly linear. Head as 

 broad as the proihorax. Eyes rather large, very prominent, slightly 

 elongated. Palpi slender; third joint obliquely truncated at the tip, as 

 long as the second. Prothorax slightly transverse, slightly narrower in 

 front above; vertical part on each side much broader in front. Cerci longer 

 than the oviduct, which is as long as the abdomen. Legs stout, rather 

 long; hind tibia; serrated and with four spines on each side, spines on the 

 outer straight, alternate with the curved spines on the inner side. 



I. Orbega pallida. 



Fcem. Paltide testacea ; caput villis quatuor fulvis interruptis ; pro- 

 thorax litura cithariformi vittisque duabus piceis ; femora postica 

 strigalis ; atie vix ullce. 



Female. Pale testaceous. Head with four interrupted tawny stripes 

 on the vertex. Prothorax with a pieeous somewhat lyre-shaped figure in 

 the disk and with a pieeous stripe on each side. Hind femora with oblique 

 streaks; tibiae with three pieeous spines on the outer side and with four on 

 the inner side. Wings rudimentary, with blackish stripes. Length of the 

 body 7^ lines. 



a. ? From Mr. Macgillivray's collection. 



//. Legs slender. 

 Genus 34. NISITRA. 



Mas et fcem. Corpus gracile. Caput parvum; vertex brevis ; facies 

 subproducta. Oculi valde prominuli. Palporum articulus 3us subclavatus. 

 Antennas gracillima?, corpore plus duplo longiores. Cerci abdominis 

 dimidio breviores. Oviductus corpore nou brevior. Pedes longi, graciles; 

 femora postica abrupte altenuata; tibia? postica? subserralae, quadrispinosae. 

 Ala; auticae abdominis apicem attingenles, maris tympano bene determinalo. 

 Aiae posticae abdomen longe superantes. 



Male and female. Body slender. Head small ; vertex short ; face 

 somewhat elongated. Eyes very prominent. Third joint of the palpi 

 subclavate. Antennae very slender, more than twice the length of the body. 



